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BASELINE RES
Structure dossier · WDID 0604173 · RESERVOIR · BOULDER CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:39 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (96d5528) — every figure regenerates from this named code version and data image.
Where it sits
Location as DWR records it. Faint dots are the neighbouring water; click any to open it.
Which of its rights are out of priority?
Not computable for this structure: no administrative call record for this basin.
Where it sits in line
Priority 1872-04-15 — 90th most senior of the 1867 structures with decreed rights in this water districtDWR's administrative subdivision of a river basin; the unit calls are usually stated in..
Under prior appropriationColorado's rule for sharing water: first in time, first in right. Age decides, not proximity or need., everything ahead of it in this line is satisfied in full before it receives any water. Immediately ahead: GOOSE HAVEN RESERVOIR COMPLEX (1872-04-15). Immediately behind: 0604201 (1872-04-15).
On MAINSTEM at river mile 12.7, it is 17th of 78 down the reach. Immediately upstream: HARPE SPRING. Immediately downstream: BUTTE MILL DITCH.
Position on the modelled network, not a claim about whose water this is — a stream carries water from many rights at once, and diverted water returns to it.
Decreed rights (12)
| Admin noDWR's numeric encoding of a water right's seniority. Smaller is more senior; the integer part counts days from 1849-12-31 to the date that ranks the right. | AppropriatedWhen water was first put to beneficial use. It sets seniority unless a prior adjudication date is later. | AdjudicatedWhen the water court confirmed the right. A use decreed in 1975 was not a decreed use in 1955, however old the appropriation is. | AbsoluteA right actually put to use, as opposed to conditional -- a placeholder for a use not yet made. | ConditionalA right reserving a place in line for a use not yet made; it must be diligently pursued or it lapses. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 8141.0 | 1872-04-15 | 1882-06-02 | 0.0 | 0.0 | A | IRRMUNRECFISDOMOTHWLD | |
| 8553.0 | 1873-06-01 | 1882-06-02 | 0.0 | 0.0 | A | IRRMUNRECFISDOMOTHWLD | |
| 11567.0 | 1881-09-01 | 1907-03-13 | 0.0 | 0.0 | A | IRRMUNRECFISDOMWLD | |
| 12724.0 | 1884-11-01 | 1907-03-13 | 0.0 | 0.0 | A | IRRMUNRECFISDOMWLD | |
| 15386.0 | 1892-02-15 | 1907-03-13 | 0.0 | 0.0 | A | IRRMUNRECFISDOMWLD | |
| 17441.0 | 1897-10-01 | 1907-03-13 | 0.0 | 0.0 | A | IRRMUNRECFISDOMWLD | |
| 20890.20031 | 1904-11-04 | 1926-06-21 | 2981.2 | 0.0 | A | IRRMUNCOMINDRECFISFIRDOMAUGOTH | |
| 20890.20624 | 1906-06-20 | 1907-11-03 | 0.0 | 0.0 | A | IRRMUNRECFISDOMWLD | |
| 26630.0 | 1922-11-29 | 1935-01-09 | 1672.0 | 0.0 | A | IRRMUNCOMINDRECFISFIRDOMAUGOTH | |
| 27930.23981 | 1915-08-29 | 1953-09-28 | 0.0 | 0.0 | A | IRRMUNRECFISDOMWLD | |
| 29219.0 | 1929-12-31 | 1953-09-28 | 1395.0 | 0.0 | A | IRRMUNCOMINDRECFISFIRDOMAUGOTH | |
| 31379.0 | 1935-11-30 | 1953-09-28 | 847.0 | 0.0 | A | IRRMUNCOMINDRECFISFIRDOMAUGOTH |
Legal record & documents
93 decreed actions on record across
14 court cases:
CA12111, 97CW0195, 96CW0158, 94CW0284, 90CW0108, 87CW0327, 85CW0119, 84CW0309, 80CW0468, 80CW0451 and 4 more below.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA12111 | 4 | 1953-09-28 | S |
97CW0195 | 8 | 1953-09-28 | S |
96CW0158 | 8 | 1953-09-28 | S |
94CW0284 | 8 | 1953-09-28 | S |
90CW0108 | 8 | 1953-09-28 | S |
87CW0327 | 8 | 1953-09-28 | S |
85CW0119 | 11 | 1953-09-28 | O, S |
84CW0309 | 8 | 1953-09-28 | S |
80CW0468 | 15 | 1953-09-28 | O, S |
80CW0451 | 8 | 1953-09-28 | S |
CA6672 | 2 | 1935-01-09 | S |
W8348 | 2 | 1882-06-02 | O |
W8347 | 1 | 1882-06-02 | O |
W8346 | 2 | 1882-06-02 | O |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 3,686 AF. Its most recent year on record, 2025, came in at 52 AF — 1% of that, and 2nd lowest of the 14 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| Year | Diverted (AFA volume: one acre covered a foot deep, about 326,000 gallons -- roughly a suburban household's outdoor use for a year.) | Compared with its own record | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2009 | 3,809 | 8th lowest of 14 · 103% of median | 680 | 365 | 81.2 |
| 2010 | 4,368 | 13th lowest of 14 · 118% of median | 833 | 351 | 84.2 |
| 2011 | 2,524 | 3rd lowest of 14 · 68% of median | 953 | 251 | 16.2 |
| 2012 | 3,363 | 6th lowest of 14 · 91% of median | 293 | 319 | 15.0 |
| 2013 | 4,229 | 12th lowest of 14 · 115% of median | 611 | 254 | 84.3 |
| 2014 | 4,047 | 11th lowest of 14 · 110% of median | 737 | 189 | 60.5 |
| 2015 | 3,224 | 4th lowest of 14 · 88% of median | 569 | 344 | 31.3 |
| 2016 | 4,015 | 10th lowest of 14 · 109% of median | 1,088 | 347 | 71.3 |
| 2017 | 5,071 | 14th lowest of 14 · 138% of median | 649 | 365 | 103.0 |
| 2018 | 3,914 | 9th lowest of 14 · 106% of median | 602 | 365 | 68.6 |
| 2019 | 3,564 | 7th lowest of 14 · 97% of median | 992 | 365 | 81.7 |
| 2020 | 3,237 | 5th lowest of 14 · 88% of median | 1,909 | 305 | 25.7 |
| 2021 | 1 | 1st lowest of 14 · 0% of median | 2,379 | 1 | 0.5 |
| 2024 | — | no recorded volume | 856 | 0 | — |
| 2025 | 52 | 2nd lowest of 14 · 1% of median | 764 | 5 | 11.3 |
Trends for this structure
Recorded use shows no clear trend over its last 14 recorded years — which is itself worth knowing.
Its reference gage, JONES DONNELLY DITCH OFF LEGGETT INLET: no clear flow trend.
How good is our record of it?
Grade A (9/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 12 right(s), seniority decoded |
| diversion record | current | 5044 measured days, newest 314 day(s) before the data's end (DWR publishes ~1 year in arrears) |
| record continuity | patchy | 47% of the irrigation seasons in 1976-2025 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
Advisory reading aid on public data — not an administrative or legal conclusion, not a title opinion, and not a substitute for DWR administration or an engineer's analysis. Methodology review status is disclosed at hydrohistorian's basin pages.